This would also be useful to change from hyphen to en dash in page rages: pp 94-96.
http://www.thepunctuationguide.com/en-dash.html
That would be such a useful ability to have in the book I'm editing now. Currently I'm planning to replace them manually, hundreds of the damn things, so if anyone has any idea of how to do it easier I'd love to hear. (Although I'll probably just be satisfied with the hyphen until I can work out a way not to have to do it manually.)